1. It is a RO System Water Filter with 5 stage filtration for Home / Kitchen Use. 2. Water making without Pump / Without Power. 3. Using 5 stages filter, can lower the pressure of RO membrane and improve the lifetime, reduce the cost of replacement filter. 4. Waste water by 1:1.5. The filters are quick-Fitting, easy to replace. 6. Flushing: he system can flush the RO membrane to ensure more reliable and safe operation of this machine.7. Automatic Control System: The system can control the whole water production process, such as stopping automatically when there is no inlet water or tank is full;